Multiple power operated mechanism



Nov. 16, 1943. R. E. LAMBERTON y MULTIPLE POWER OPERATED MECHANISM Filed OCL. 2l,- 1941 5 Sheets-Shaml l llmlm" Nov. 16, l1943. R. E. L ,MvnaER'l-ONv MULTIPLE POWER OPERATED MECHANISM Filed Oct. 2l, 1941 v 3 Sheets-Sheet 2 a @if Ofc FV Ow wm M l A.%\N\\ I WL M m @Q NQ M ma a y Y %W.Q% hm..

l l Nov. 16, 1943. R E, LAMBERTON 2,334,209 MULTIPLE' POWER OPERATED MECHANISMV Filed OC. 21, 1941 3 Sheets-Sheet 3 Z3/M Amm' Patented Nov.v 16, 1943 ,y

MULTIPLE POWER OPERATED MECHANISM Ralph E. Lamberton, Michigan City, Ind., assignor to Sullivan Machinery Company, a corpora-- tion of Massachusetts Application October 21', 1941, Serial No. 415,958

`Claims. (Cl. 254-187) v x My invention relates to apparatus for control-- broken away, showing my invention in its `pre, t ing the driving of a plurality of power operated ferred form. 1 f mechanisms from a prime mover, and more par- Fig. 2 is a plan view, with parts broken away'. ticularly to improved means for controlling -seof the Imechanism shown ini-Fig. 1L j f lectively'the driving of combined pumping and 5 Fig. 3 is an `enlargedsectional viewthrough hoisting mechanisms from a common source vof an unloading device, a cylinder V head anda por-'f1 power. tionv of `a cylinder, taken on the plane` includ It. is often necessary to have available for ing the axis'of the cylinder. ,jf certain types of construction vwrlr. a source of .'Fig.' 4is an enlarged vertical sectionalwiew compressed air for pneumatic tools and a hoist lo through a control valve, the section being taken j for moving materials. Ther .expense involved on line 4-4 of Fig. 2. i in providing a compressor and a holst driven Fig.'5 is aviewsimilar to Fig. 44, showing'the by separatev prime movers is sometimes prohibivalve in a different position. Y tive. The expense may be reduced somewhat by' fFig. 6 isl an enlarged Avertical sectional view providing an air operated holst; but the size of 15 through anothercontrolvalve. taken onlinetv the hoist may be limited where itis to be oper- V- of Fig. 2. 1- i" ated by air supplied by the compressor. "By pro- Fig. 7' is a View Similar te FigrGQ ShOW'l viding a single prime mover and means for envalve in a diierent position.` 1 e abling the power of the same to be utilized seleci There is shown in this'illustrativeembodment' tively at any time to cause a compressor to deliver V20, 0f the invention e Dvvell unit l, 9i Dumping wlmi-14 air or a hoist to be operated, and so thatthe ,rains 2 inthe fOrIn 0f a COInDIeVSSi", end apOWerf hoist may be driven while the vstored air" pumped driven device 3;'shown 'herein inthe formfofa* by the compressor is being used, 4a very desirhoist; mounted. 0n a baee Struetliegenerallildes? able piece of equipment is made available.. If, ignated 4. Mounted'on the base 'structure and' L as in my invention, control means are provided surroundingfthe power unit'andl the compressor l whereby the load of the compressor and the speed Y is a ,casingV 5- This apparatus and 'eerlain 0f the' of the prime mover may be controlled autocontrol-devices to bedescribed h'ereinare, similar` matically when the compressor isv drivento perto that shown and described in my eopendlng el?. form its pumping functions, and the compressor- DlieetiOn, Serial NO- 379,943, filedl Alelilil2112i' 2 1; f imposed load is reduced and the speed oi the 1941=' i Q prime mover is made responsive continuously to The DOWer unit may eSSilrme vfSfIOnS" fOllmS. a manual control when the hoist is connected in but is Shown hereinV aS an engine' Oithe internal' driving relation with the prime mover, a very combustion4 type arranged with its newer-Shaft, satisfactory compressor and hoist unit maybe extending longitudnallvofthe base Structure-lf VA Drovided. j 35 radiatore-is .mounted` on the end of the base' An object of my invention is to provide an imstructure adiacent-theensinefl andeontins Cobb' proved apparatus in which a. pumping device ing fluid f01 the le'lel-` Ai? the Side O ilie. and a Separate power driven mechanism may be gineis af-throttle` device 1 which is Vlcon i:"rfilied y selectively driven by a single `power unit. Anmanliallyoperated and entemaieelli?" Operate@ other object is to provide improved means for 40 means, generally designated it.Wheh'Willrilerllli*V Controlling selectively the delivery 0f! fluid byja be described morein detail; pumping apparatus and the operation of ahoist The compressor 2 shown herein vis oi' the-xnulti-V from a single power unit.' still another object cylinder, singlestage type having cylinders Il).- is to. provide a compressor and a hoist adapted e andl il extending rdially'fi'om alrank Gesell l Seleeliivelyto be operated toperform their respecand i-the compressor cr`ankshaft. a portionA of tiveefunctions by 4a single power unit and having which is shqwnf'at lll, iS arrengedin velilfelneni" improved means forcontrolling the supply of Withfthe powersliaft of the engine and" is 'driven operating uid to the power unit and the'unloaddirectly thereby- A 'fen l5 iS CQnneCl'fefl .t9 e?. ing of the compressor during the driving of the frame i6 attached 'to lthe compressor crankease hoist. Other objects and advantages will appear and-is riven by a bell? ll engaging a pulleyvv 1 8 in the course of thev following description. on the compressor crankshaft for circulating In the accompanying drawings in which for Cooling air through the easing 5 Over 11116135.3151 purposes of illustration one formof my invention DreSSQr'ed engine- Y has been shown; Y Thecompres'so'r cylinders are identical in c'ori- Fig. 1 is a side elevational view with parts 55 struction,l and each comprises, as shown in Fig.

3', amcylinderrmember 2Uhaving a-bore12| within whicha piston 221 may kbe reciprocated by the vcompressoracra'n'lcshaft''through a .connection not shown; Ayalvemechanisrn, generally designated 2.8,"anda. -c-ylinder ,head 24a-re arranged in -an .enlarged f bore .25"formed inv the `cylinder memsage -I4- opening into a discharge conduit 35.'

LThe ydischarge.conduits-oi .the ycylinders Il.y and vare-connected: to a ycommon conduit 38 Which delivers .the compressed air to a. storage tank 81 supported .above the base structure by support memberssand 38. A

Mounted-.on theouter ends of each of the com- .pressor cylinders are .unloading devices genen ally designatedlll. Each of these unloading devices includes a memberv 4| and plates *42. and 43 directly on top. of the plunger, or by admitting pressure lluidlto the space above the diaphragm '86 in the chamber 65 to force the' diaphragm downwardly and4 move the plunger 81 against the plunger 41',` forcing the latter downwardly to its unloading position. A vent'15 leads from space 65' below thediaphragm 66. .e

To effect automatic unloading of the com- .pressor and reloading thereof in accordance with piltvalve 1 9, which may be'of any suitable typev and which-is herein illustrated as a so-called R. C. pilot valve, connected in the compressor attachedtoxthe cylinder head as by bolts 44.

Formed between .the plate 43 and the member 4| isa chamber A65-within whicha reduced portion 48 of a .plunger 41 ,projects `through openings I8 -tendingtbroughopenings 83 .in the cylinder heady intor the intake passage 3| and engageabie'g-at their lower ends with the inlet valve to move thev latter from its seat andunload'the compressor when the plunger is forced downwardly. vThe. plunger. 41 is normally.he1d in its raised position: by 'aspring 55-arrangedin` the recess. 5| be- .neaththeplunger 4,1 and shown herein as being .of the bowed plate type. Thespring Eiland the vplungexfare'guidedbya pin 56 xedtothecyliniderfhead and projectingupwardly through fan opening inthe spring intoa recess 58formed in thefplunger., Surrounding the reduced lportion 48 of the. plunger just yabove the plate 42 is a packing tsealingly engaging the plunger for preventing the :escape of pressure fluid from the chamber 4i .into .the recess 5|. Mounted on the plate 48 arenmembersftl and 62 heldin place by bolts 84 extending through openings formed in the-plateland in a ange on the member 4| as shownflnxFig. 3. Formed betweenthe members .,6;|"and.2i is ra. chamber 85, and a exible diaphrhgm l1ilsvreceived :in `this chamber .and clamped'between lthe members 8| and 62. A

.plunger161 is arranged inthe chamber 65. and-has an enlargedhead .88 whichls heldin engagement discharge conduit '36. This pilot valve is opervative upon the' attainment of a predetermined desiredgmaximum compressor discharge pressure to supply fluidifrom the discharge line .past the device 18 ltotheconduit. 11, ,and upona drop in pressure, to a predetermined minimum value to vent the conduit v1.1.

In order' tollnload the compressor when the same is operating loaded and it is desired to connect the hoist for drive by the engine, conduits 8U are provided'opening into the chambers 65 above the diaphragms 68, and these conduits are connected to a commonconduit 8|v opening into a bore 82. in a valve casing 88, as shown in Figs. 4 and 5. Arranged in the crank case of-,the compressor is a lubricant pump, not shown, for supplying lubricant to parts of thecompressor mechanism, and connected to this lubricant pump is a conduit which opens into the bore of the valve casing 8 8., A conduit 85 also communicates 4with the bore .of lthe valve casing and leads to the crankcase of the compressor for returning iluid thereto.v A; valve 81 is rotatably mounted in Fig. 1, the valve 81 is moved to the position with-the diaphragm sa by scoilsprme'sawmch restscn'th'e member 62;` A `reducedfpo'rtionxH vmechanism is. slmilarto that described in detail of the plunger :B1 l, extends downwardly ythrough A openings linthe member 821 and ,the plate 43 into the chamber 45"-in axial alinementwith the" plunger 41. A .packlng 1.4 fits withina recess in .theme'mberIIsurrounding thevreduc'ed portion 1| `sindrsealingly engages fthey latter. for preventpressure fluid to the chamber 45 where it .acts

shown in Fig. 5 for connecting the conduits 8| and 84 through the groove 88 and supplying oil under pressure from the lubricant pump to the upper side of a diaphragme 88, thereby forcing the diaphragms downwardly and moving the plungers 41 to their unloading positions. In order to drive the hoist, there is provided a coupling connecting a shaft 98 to the-end of the compressor crankshaft I4, and the shaft 9G is connectable through a`.o1utch mechanism, genrally designated 91, to a shalt 8 8. The clutch 'in counter-clockwise and clockwise directions, rel Spectively. Power ls transmitted from the shaft 88, as shown in Fig. 2, through a flexible l/drive member 99, such as a belt or chain, to ashait` |08 which is connected through suitable gearing,

not shown, to the drum of the hoist 3. Suitable means are provided for'controlling the operation'of the drum andare 4shown here as including operating levers'|02,.|.03 and-|04. `The lever |02 is connected :through a link v|05 to a shaft.- |06 lwhich eflectsfoperation ofa clutch, vnot shown, controlling .the driveiof the drum. The lever |03 is connected through a'link |01 tov a shaft `|08 on which a dog |09 is fixed and is movable by the shaft |08. into engagement with teeth ||0 on the drum forl locking they latter against rotation'in an. unwinding direction. The lever |04 is connected through a link to a` shaft ll2'and controls the operationof abrake, not shown, for braking the rotation'of the Vdrum'. It will be notedr that,-fsin'ce a'control of the hoist is eected bythe levers last described, after Acontrol Alever 92 has-been operated to-connect the shafts v96 andf98, I.the other .control mechanism will have hadtime to become .operative before the hoist load is appliedrtothe engine.

Referring; to the control means 8 for `the throttledevice 1 of the engine, it will be noted that a rod is connected at one of its'ends to the throttle and is connected at itsv other-end to f an arm ||0 mounted for vpivotal movement-at ||1. Suitable pressure responsive means'l I8 are provided foreiiecting'a swinging ofthe arm 'H0 about its pivot to move the rod H5. in'a direction to close the throttle valve when pressure 'uidis supplied thereto. lThis controlmeans lis a. standard piece of equipment thatm'ay be `purchased in the open market and, since the present invention is not in any way/dependent on vthespeeiiic form of this device; Iurtherfdescription of the same is unnecessary.'` Aconduit |20 leads from the device 10 at. a-point communicating freely with the pilot valve 19 (i.e. it isnot subject'to restricted ilowin al return directionfby'thedevice 18),.and is connected `through a valve, generallydesignated |2|,1toa .conduit |22 leading to the pressureresponsive means'IIB'." A lever 23. pivotallyy mounted between lits ends, Yoperatively engages, :at oneof-itsentis,` the rodl I5 and is connectedratits'other endt'o a rod |24 whichtis connected to a lever |25 that may 'be manually loperated to open vor closethethrottle. The controlvalve |2|, as shown'intFigs'. 6 and '7,

includes a valve `casing |26 having ports '|21 and |28 opening into a valvebore |29. Theconduits |20 and |22 communicate throughgthe ports. |21, |28 respectively with the valvebore; anda valve element |30, rotatablymounted within the valve bore, is providedv witha 'groovel-l for connecting the ports |21- and |28 when the valve is in one of its limiting positions; A groove |32 is formed in the valve for connecting theport |20 with a.,

` vent port |33- whenthe valve ls in another of itslrlimiting positions.. Connected `to the valve, .as

shown in Fig; l, visfan arm `|35 vhaving its outer;-

end connectedfto a rod |36 which is connected to an arm |31 fixed to one-endof 'the valve81.

The mode of operation of the'mechanism described above -is asfollows: Assuming that the pressure in the .receiveris low and that it is vdesired to drive the'compressor for pumping airltothe receiver, the lever 92 wilibe moved in a clock- Wi'sedirection to disconnect the'hoist, to move the valve element |30 of the valve |2| to its position' .f

connecting conduits |20 and |22, andto move the valve 81 to apositionfor. venting fluid from the spaces-above the diaphragms to the compressor. crankcase.

Now if the engine is running, thev compressor is driven loaded and pumps air to the Speeds, adjusteniby'vmanuaicontrol means.A while .plied ifrom different receiver until a predetermined maximum dis- .75

chargepressure is reached. i During thistimetheA a n supply or operating 'fluid to thezengine may-be controlled by adjusting the'throttle 1"thr ough the operatingtleverl |25, the'rod :124, 'the lever |23 and :the rod VHi; "When the .maximum desired `'pressure is reached, the pilot valve l19 operates toV Vsupply 1 pressure iiuid from the discharge line Vthroughthedevice 18, conduit111andthe.'conduits 16 to the chambers 45whereit acts'on'the plungers v||1 moving the latter to their lower unloading positions.

not underthetcontrol of, the device 18, to the ,conduitv |"20',an d.past the valve |2| 4to the conduit y |22 ieadingto the pressureresponsive devicef'l |`8 which is-.actuated to move the engine throttletowards its :closedzpositien .Asdong-as' thepresrr`sure 'in' `the .discharge line .i remains khigh enough tol-hold the `pilot valve opempressure fluid is sup# unloading devices *forthe compressor to drivethe .compressorzunloaded-at a slow speed.

If'itis demeurer any time to connect the vhoist' in Adriving relation with the-engine, the. operating lever 92 ismovedin a Counter-clockwise direction 'Oil is` the i pumped Lfrom .the compressor crankcase through the conduit 84past the valve y81, and through the vconduitililand vconduits VV to the spaces above the diaphragmsvfor forcing the/latter downwardly andmoving the plungers `,61v and 41 to positions eifectingunloading of thev compressor. Any-'pressure fluid in the throttle controldevice ||8 is vented through theconduit |22 to theventport |`33permittingthe 'throttle to move-towardits 'openfposition for speedingup the engine to carry its load.l The speed of the engine will =then`, except.as .speed `:responsive or other devices may be provided, Lbe regulated by the operatorthroughthe leverl25'and-corfi`nected parts.

As Va resultiof this invention there is provided an improved combinationoia` pumping apparatus and a, separate*powervdrivenmechanism having improved means florselectively connecting the same in driven relation with apowerunit. It willbe noted that there .is provided improved meanswherebya single power unitmay be em-l ployed for driving a pumping apparatusat `different speeds, yvarying vautomatically in Aaccordance with discharge pressure, or ffor driving a separate :power adriven 'mechanism at diierent theipumping apparatus'isrunloaded. AItwill fur- -ther 'be noted that there .is .provided improved unloading means for a compressor, thefunloadingrmeansbeing responsive to pressureiiuid sup- -sources Other advantages of theinven/tion'will be clearly. apparentV to those skilledrin'the art.

Thefimproved unloadingfmeans, per seY disclosed .inthisapplieationisbeing claimed inxmy copending application SerialNo. 448,615,which is a. continuation-impart offthis present application.

` While there is form which'the invention may assume in practice, itwill be understood that'this form is shown for purposes of illustration and that'the invention may be modied and embodied in various other forms without departing .from its spirit or the scope of the appended claims.

At thesame time, "pressure .A filui'd is-supplied'pastfthe pilot' valvejand` past, but

providedin this application one i 1. In combination, a power unit, a puinpin'g'ap-v paratus connected for 'drive by said power unit,v

a pressure responsive device for controlling the supply of operating fluid to said power unit, pressure responsive unloading means i'or said pumpl ing apparatus, means for yconducting pressure iluid to said pressure responsive device and to said unloading mean s.means operative Vat a predetermined pumpdlschargepressure for supplying f pressure nuid to said tluid-4 conducting means,

valve means forcontrolling the iiow oi pressure 'nuid through 'said conducting meansv to said pressure responsive,'deyicej-ineansfor conducting nuid under -pressure from a separate. source to said unloading means, valve means for controlling the flow of pressure fluid through said last mentioned means. a separate power driven mechanism adapted to be driven by'said power unit, manually voperated Vrnean's forv controllingxthe connection off said power'driven mechanism in driven relation withsaid power unit, and means connected forv operation with said manually operated means and`jjadapted to effect actuation of said valve means tp positions for cutting ofi' the flow of fluid to saldlp'ressure responsive device and for supsaid power'unit. l

2.` In combination, a power unit, a compressor connected for drive by said power unit, a pressure responsive device for controlling thesupply of operating uid to s aid power unit, pressure responsive unloading means for said compressor, means for conducting pressure' fluid to said pressure responsive'A device and to vsaid unloading means, meahsjoperative -ata predetermined maximum compressor discharge pressure lfor supplyingpres- Sure'iluid t'o said vfluid conducting means, valve means for controlling the flow ofv pressure iiuid through said conducting means relative to said pressure' responsive device, means for conducting nuid under pressure from va separatesource to saidunloading means, valve means forcontrollingune" ilow Ioit ypressure fluid through said last 'imentioned' means a. hoist adapted to be driven by said powerhunit, a clutch mechanism.

said clutch mech'anisrnisac tuatedto connect said i hoist in driven relation with .saidpower unit.

3.`In combinatiom'a power unit, a compressor f; '.1

connected for drive'by 'said powerunitafpres.

sure responsive device for controllingthe supply of operating fluid .to said power-unit, pressure responsive unloading'means for said compressor,

position thereof, completely to vent pressure iiuid from said pressure responsivedevice, means including a valve for supplying iiuid under pressure to said unloading means, a power driven device adapted to be driven by said power unit, a.y

clutch mechanism for controlling theconnection of said power driven device in driven relation with said power unit, and means connected for operation with said clutch mechanism and adapted to eiiect actuation of said valves to positions ior' venting liuid from said pressure responsive deviceV and for supplying fluid under pressure to said unloading means when said clutch mechanism is actuated to connect saidl Power driven device in driven relation with said powerunit.

sure responsive unloading means for said lpumping apparatus, means for conducting pressure tluid'relative to said pressure responsive device and said unloading means, means operative at a predetermined pump discharge, pressure for supplying' `pressure fluid to -said iiuid conducting vvinensr."valve means for controlling the now of 1 lvpressure -lluidthrough said conducting means rel- 'Y plyingfiluid to said unloading means When said manually operated means :is operated to connect said power'driven device in driven relationwith fativeto'sald, pressure responsive device and oper- .ative Airl-foneposition completely tovent pressure v'fluid fromsaid pressure responsive device, separate -f'o'r venting uid from said pressure responsive device and for supplying fluid to said unloading means when said power driven device is connected inldrlven'relation with said power unit.

5.' In combination, a power unit, a pumping apparatusconnected for drive by said power unit, a pressure 'responsive' device for controlling the supply of operating 'duid to said power unit, pressure responsive unloading means for said pumping apparatus,- means for conducting pressure fluid-relative `to .said pressure responsive device and said unloading means, means operative at a predetermined lpump discharge pressure for supf plying' pressure fluid to said uid conducting means, valvemeans associated with said conducting means between the ends of the latter for controlling .the flow of pressure fluid through said Y conducting means relative to said pressure responsive device, separate means for conducting fluid under pressure relative to said unloading means, valve means for controlling the flow of q pressure uid through said last mentioned means,

means operative at a predeterminedl maximum compressor discharge pressure for supplying presa power driven mechanism adapted to be driven bysaid power unit, means for controlling the connection of said power driven mechanism in driven relation with said power unit, and means operatively connected with said last mentioned means for controlling the operation of both of said valve i means.

RALPH E. LAMBERTON. 

